Live updates

John Thornton was just a few weeks away from the end of his tour with the Royal Marines in Afghanistan when he was killed. He was 22.Five years later and his diaries have been published - alongside those of his older brother - who is still in the armed forces.

Their accounts - of life on the frontline - are both honest and emotional, as Richard Jones has been finding out. He spoke to the brothers' parents Linda and Pete Thornton.